GIRA
Info
Combination sensor
Installation Instructions
Combination sensor
9/06
Page 1 of 5
Function
• The combination sensor can measure wind speed,
precipitation, brightness and twilight. Brightness
can be measured separately for the cardinal points
East, South and West.
• The combination sensor can be directly connected
to a weather station (order no. 1010 00) which en-
sures further processing of the measured data and
transmission to the bus in the form of switching or
value telegrams.
Bus subscribers (Info-Display, visualization soft-
ware, LCD annunciator and control panel) can thus
intervene into control processes, generate mes-
sages, or control weather-dependent processes.
Resulting applications are in building services
management, control engineering, greenhouse
control, or in further processing of the collected
data in control and operating units.
• The combination sensor is equipped with a DCF77
receiver which can receive the legal German time
and transmit the signals to the KNX/EIB bus (e.g.
to synchronize KNX/EIB clocks).
• To ensure trouble-free service even in case of
frost, the combination sensor can be heated.
• The combination sensor needs an external 24 V
power supply, e.g. order no. 1024 00.
The latter can also supply power to other sensors
as, for instance, WS 10W, WS 10R, their heatings
and the weather station.
• The part of the enclosure where the brightness and
precipitation sensors are located (side and top of
the device) should be free from dust deposits to
avoid incorrect measuring values. In operation,
rainfall is mostly sufficient to clean the enclosure
surfaces.
Installation
• For installation on a tubular mast (
Ø
35 ... 50 mm),
a stainless-steel mounting bracket is supplied with
the sensor (FIG.
c
, A).
• The combination sensor must be installed unob-
structed by obstacles in all directions.
• When the combination sensor is installed in front of
a wall, a minimum spacing of 0.5 m must be re-
spected to prevent incorrect measuring values due
to negative influence on the sensors.
• To enable the brightness sensors to clearly deter-
mine the sun’s actual position, the combination
sensor must be aligned with the help of a compass
in such a way that the pricipitation window points to
the North (see FIG.
d
). In this case, the brightness
sensors are correctly aligned with the cardinal
points (FIG.
e
).
• To ensure perfect wind speed measurements, the
wind wheel must be able to turn freely. This can be
checked visually at low wind speeds.
c
d
Combination sensor
Order no.: 1025 00
Safety warnings
Attention:
Electrical equipment must be installed and fitted
by qualified electricians only and in strict obser-
vance of the relevant accident prevention regula-
tions.
Failure to observe any of the installation instruc-
tions may result in fire and other hazards.
